MongoDB QueryString

Accept MongoDB query parameters through URI queries safe and easy. This is useful when building an API and accepting various user specificed queries.

Features

• Aliased query parameters
• Blacklisted query parameters
• Whitelisted query parameters
• Basic operators
  • $ne
  • $gt
  • $lt
  • $regex
  • $exists
• Geospatial operators
  • $geoWithin
  • $near
• Custom query functions

Install

npm install mongo-querystring --save

API

var MongoQS = require('mongo-querystring');

new MongoQS(object options)

• Array ops - list of supported operators
• object alias - query param aliases
• object blacklist - blacklisted query params
• object whitelist - whitelisted query params
• object custom - custom query params

Bult in custom queries

• bbox - bounding box query
• near - proximity query
• after - modified since query

Define custom queries

Custom queries are on the folling form; you define the URL query parameter name that your users will be using and a function which takes the result query object and the value for query parameter.

var qs = new MongoQS({
  custom: {
    urlQueryParamName: function(query, input) {
      // do some processing of input value
      // add your queries to the query object
      query['someField'] = input;
      query['someOtherFiled'] = 'some value';
    }
  }
});

qs.parse(object params)

Params is an object with URI query params and their values. Ex. req.params if you are working with ExpressJS.

var query = qs.parse(req.params);

mongo.collection('mycol').find(query, field).toArray(function(err, documents) {
  // matching documents
});

MIT Licensed